Force-feed lubricator.



W. A. WEIL. jFORGE FEED LUBRICATOR. ArrLIoA'rIoN IILBD JULY 21, 1912.

1,083,1 66. Patented Dec. 3o, 1913.

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- .WILLIAM a. WEIL, or eLENcoE, o HIo.

rosen-FEED LUBRICATOR.

Speciiication of Letters Patent.

Patented Dee. 3o, 1913.

App1ication`1ed July 27, 1912. Serial No. 711,853.

To all whomitmay concern.' Be it known that I, WILLIAM A. WEIL,

f' citizen.r of the United States, Aresiding at Glencoe, in. the county of Belmont and vState of Ohio, .have invented certain new and useful Improvements in Force-Feed Lubricators, of which the following is a specification. g

My invention'relates to lubricators, and particularly to force feed lubricators designed to work against steam pressure.

. The principal object of my invention is the provision of a very simple, compact and effective force feed lubricator, readily put in place or removed, readily adjusted to suit various conditions of operation, and adapted to preserve a uniform pressure of the lubricant against the pressure of steam or like fluid.

A further object is vto providev a force feed lubricator in which the pump therefor is so constructed as to be extremely compact andin which a direct engagement is secured between the driven shaft and the piston without the necessity of mechanism interposed between the two or transmitting the movement of the Adriven shaft to the piston. v

A further'object is to provide in connection with a force feedlubricator, an .actuating apparatus for oscillating the piston, so constructed that `the length of throw of the 'piston vmay be' regulated and the ratio of the rate of movement 'of the piston to the' rate of movement of the drivingmechanism' may be adjusted.

. `Other objects will appear inthe course of the following descri tion.

My invention is il ustrated in the accompanylng drawings wherein:

Figurel isa side elevation of a force feed lubricator constructed in accordance with rmy invention, the auxiliary pressure chamber and thepiston chamber being'in section.

Fig. 2 is a vertical section through the piston chamber, the gearing connected to the'- ypoint of its circumference with an outpiston being shown' in elevation. Fig. 3 is a perspectivedetail view-of the piston Correspondingand like parts are referred to' in the following description and indieA cated in all the viewsjoff the accompanying drawings by the same reference characters.

Referring to vthe drawings, 2- designates apipe leading tothe cylinder `of any engine.

or pump and connected in any suitablemanner to the, upperend of afsight feed glass 3. This sightfeed is of anyl suitable construction and forms no part of my invention, and hence' requires noparticular descrlption. Leading into the lower end of -the sight feed glass is a pipe 4 which in turn leads to the4 pumping mechanism as will be later described.

Disposed in the length of the pipe 4 is a T 5 connected to a pressure chamber 6. This pressure chamber is formed, as illustrated, in two sections, one of which is adjustable upon the other. The pressure chamber consists of the body section 7 which is' eXtei riorly screw threaded and a cap 8 vwhich is interiorly screw threaded so asto be adjustable up or down upon the body 7.

Disposed within the chamber 6 is a piston 9 having a spindle 10 which extends through the cap, and surrounding this spindle and bearing at one end against the cap and at the other end against the piston is a spiral spring 11 which acts `to force the piston downward and which resistsY any upward movement of the piston with a strength depending upon the position of the cap 8. If

the cap 8 is screwed down upon the body 7 the spring will be` under greater tension than if the cap 8 is screwed outward. Thus the tension of the spring may be adjusted at any time.

Connected. to the p1pe 4 1s apump casmg designated 12. This casing is formed onone face with a segmental groove 13 forming a piston space, and at one end is connected by means of 'a duct 14 to the pipe 4, the casting forming one section of the pump casing being threadedas at 15 for engagement with the pipe 4L The outer end of the duct 14 is enlarged as at 16 so as to form a valvel chamber-'within which is disposed :1 -ball valve 17 which opens to pressure within the duct but closesto pressure within the pipe 4. This valve chamber is closed by means of a screw threaded plug 18 which when removed permits the ball to be removed or inserted. vThe pump casing 12 is formed at one wardly projecting hub 19 formed with a polygonal portion 20whereby a wrench may upper end by a cap 24 and'extending across the upper end'of the reservoir or cup is a strainer 25. The cap 24 is formed with a filling opening 26 whereby the lubricant may be poured into the cup ,at any time desired.

The hub 19 is formed with a duct or passage 27 which opens into the4 piston space 13 intermediate its ends. The section 12 of the casing is formed at its center with a recess28 opening upon the outer face of the section 12 and mating with the section 1-2, and fitting against the outer face thereof is a section 29 comprising an approximately circular plate held in place by screws 30 and formed at its center with a Socket or bearing 31 for the recept-ion of the end of a central shaft or spindle 32. Mounted upon this shaft is a sleeve 33 having an outwardly' projecting arm 34, and extending in the are of a circle from this arm .34 is a segmental piston 35 formed at its end with a head 36 adapted to receive a gasket or packing 37, this packing being held in place by a plate 38 and a screw 39. The body portion12 of the pump casing is slotted as at 40 to permit the arm 34 to oscillate so as to carry the piston head from the position shown in Fig. l to the extremity of the piston space 13.

As a means of oscillating the piston 35, I have provided a ratchet wheel operatively connected for intermittent rotation in one direction to any suitable operating mechanism of the engine or pump to be lubricated and operatively connected to the shaft 32.

v As illustrated, the main section 12 of the casing is provided with a projecting bracket .41 which extends downward and outward from the section 12 and carries at its end a shaft 42. Upon this shaft is mounted the `ratchet wheel 43, this ratchet wheel being cast on the shaft and having a projecting wrist pin 44 upon which is mounted a pitman or connecting rod 45 pivotally connected at its extremity to an arm 46 projecting from and attached to the shaft 32 by a set screw. It will be seen that upon a rotation of the wheel 43, the arni 46 willbeoscillated, thus oscillating the shaft 32 and the piston.

As a means for securing a rotation of the wheel 43, I provide upon the extremity of the shaft 42 a crank handle 47 whereby the wheel 43 may be manually rotated, and I also provide an arm 48 rotatably mounted upon the shaft 42 and provided with a pawl 49 meshing withl the teeth .of the ratchet wheel 43 upon movement in one direction but sliding over said teeth upon movement in the other direction. In order toprevent a reverse rotation of the wheel 43 whilethe pawl 49 is slipping over the teeth of the wheel, I may provide the pawl 50 pivoted upon the bracket 41 and engaging said teeth. The arm 46 is formed with a plurality of perforations 52 whereby the connecting rod 45 may be adjusted with relation to the axis of the piston, and I also form the arm 48 with a plurality of perforations 53 whereby a rod 56 may be connected to the arm 48. By adjusting the rod 56 in any one of the holes 53, the throw of the arm 48 may be adjusted and as a consequence thedegree of rotation of the ratchet wheel and the degree of move-` ment of the piston be adjusted.

The lubricator may be supported in any suitable manner` butI have shown for this purpose a bracket 57 engaging the hub 22 and attached in any suitable manner to some fixed support.

The operation of my invention is 'as' follows: Theoil flows by gravity into the opening in the pump, casting when the piston head or plunger is back in the position shown in Fig. 1, and when the piston moves forward it closes the port forming the mouth of the duct 27 and forces the oil along the space 13 by thelcheck valve 17 and into the pipe 4 in which there is a pressure corresponding to the steam pressure. The degree of movement of the piston 35 will of course depend upon the perforation 53 within which the rod 56 is fixed and upon the adjustment of the connecting rod 45 with relation to the arm 46. It is possible to so adjust the mechanism that upon each recipi to travel through the entire length of the space 13 and to cause its complete. retraction. Thus by proper adjustment the oil may be fed rapidly or. slowly, depending upon circumstances and, furthermore, it will be noted that this adjustment may be made -very rapidly and without stopping the engine inasmuch as yit isl only necessary to throw out the dog or pawl 49, thus disconnectingthe oscillating arm 48 from the wheel 43 and stopping the action of the pump through not stopping the engine. It will also be seen that oil may be poured into the cup or reservoir 23 at any time without having to stop the engine ordisconnect the lubricator. f'

The function of the pressure chamber 6 is to cause 'a uniform pressure of oil at all times. As the piston 35 moves forward, oil is forced into the pipe 4 against the pressure therein and some of the oil will be forced up intothe chamber 6 against the force of the spring'pressed piston 9 so that this chamber 6 will always have a certain amount of oil therein, and when the piston 35 is retracted, the force of the spring 11 will force the piston 9 down, thus forcing out oil from the auxiliary chamberv 6 into the pipe 4 and intothe engine. Thus it will be seen that a uniform flow of lubricant is secured continuously.

The throw of the pump piston may be regulated by adjusting the lever 48 which is attached to the shaft by a set screw.

What I claim is: Y

1. A force feed lubricator including pump casing having an arcuate piston space therein, one end of the piston space having a discharge duct leading therefrom, an outwardly opening valve in the'discharge duct controlling the same, a lubricant reservoir opening into the piston space intermediate its ends, a transverse shaft passing through the casing, an arm on the shaft and disposed Within the pump casing, an arcuate piston supported on said arm and traveling in the arcuate piston space, said piston having a head at one end and the body of the piston being adapted to close the duct from the lubricant reservoir, and means for oscillat* ing said shaft. Y

2. A force feed lubricator including a pump casing having an arcuate'piston space therein, one end of the piston space having a discharge duct leading therefrom, a valve controlling the dischargeduct, -a lubricant reservoir opening into the piston' space intermediate its ends, a transverse shaft passing through the casing, an arm on the shaft, an arcuate piston supported ony said arm and traveling in the piston space, said pist0n having a head at one end and the'body of the piston being adapted to close the duct from the lubricant cup, an arm on the shaft, and means for oscillating said arm.

8. A force feed lubricator including a pump casing circular in form and made in two sections, one of said sect-ions having formed therein an arcuate piston space having a duct leading therefrom and terminatv ing in an eXteriorly screw-threaded nipple,

said nipple being adapted to support an oil reservoir and being tubular, the other of said sections mating with said rst section and being formed with a central bearing, a shaft passing into said bearing, an arcuate piston mounted on said shaft and movingin the piston space, and means whereby the shaft may be oscillated.

In testimony whereof I aiix my signature in presence of two Witnesses.

y WILLIAM A. WEIL. [1.. s] Witnesses:

CHAs. BUNHILL, J. J. MGFARLAND. 

